Roslyn

C# and Visual Basic - Use Roslyn to Write a Live Code Analyzer for Your API

https://msdn.microsoft.com/en-us/magazine/dn879356

https://github.com/dotnet/roslyn/wiki/Getting-Started-C%23-Semantic-Analysis

https://github.com/dotnet/roslyn/wiki/How-To-Write-a-C%23-Analyzer-and-Code-Fix

http://www.cnblogs.com/shanzy/articles/525226.html